MODE OF EVALUATION OF TECHNICAL STATE OF BEARINGS OF TRANSMISSION OF AVIATION ENGINES Russian patent published in 2005 - IPC

FIELD: aviation technique.

SUBSTANCE: the invention may be used for evaluation of technical state of engines, motor- cars and mechanisms according to measuring of vibrations and characteristics of abrasion of metallic particles found in lubricating oils, fuel and special liquids. The mode includes shock-impulse control for which the sensor for registration of vibration with the help of a bar is installed on the non-working engine in the shaft of the turbine of low pressure in the zone of the unit of the intershaft bearing. An average significance of amplitudes of signals of vibrations is measured in the process of free rotation of the rotor and compared with the liminal allowable level. With the help of the scintillation analysis they determine the level of parameters of wearing particles in the oil and( or) in the wash-out from oil filter of the investigated engine, and if in oil there are wearing particles related to different bearings technical state of one or the other bearing of the transmission and the level of vibration through exceeding of parameters of wearing particles is evaluated.

EFFECT: separate evaluation of technical state of the bearing of a turbine of high pressure and in intershaft bearing.